A Little Puzzle

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Across
  1. 3. Floor Beam
  2. 5. Protective ditch
  3. 8. Need
  4. 10. Certain
  5. 11. Hint
  6. 12. Frans who? Nature Photographer
  7. 14. Maker of the PEN camera
  8. 17. The opposite of download
  9. 19. Portion
  10. 20. Small drum
  11. 22. Small islands
  12. 23. Dawn goddess
Down
  1. 1. Animals are here
  2. 2. Old stories
  3. 4. Used to stablize and elevate a camera
  4. 6. Initial wager
  5. 7. Mr List photojournalist
  6. 9. Govern. Of thirds
  7. 11. Half man, half horse
  8. 12. A certain bacteria
  9. 13. Erase
  10. 15. Shooting star
  11. 16. Aquatic mammal
  12. 18. Camera body and ?
  13. 21. Extreme happiness